1、BRITISH STANDARD BS ISO 14743:2004 Pneumatic fluid power Push-in connectors for thermoplastic tubes ICS 23.100.40 BS ISO 14743:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 8 December 2004 BSI 8 December 2004 ISBN 0 580 45001 5 Nationa
2、l foreword This British Standard reproduces verbatim ISO 14743:2004 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee MCE/18, Fluid power systems and components, to Subcommittee MCE/18/-/4, Connectors and associated components
3、, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section
4、entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compl
5、iance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related
6、 international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, page 1 to 22, an inside back cover and a back cover. The BSI copyright notice displayed in this docu
7、ment indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 14743:2004(E) ISO 2004INTERNATIONAL STANDARD ISO 14743 First edition 2004-05-01 Pneumatic fluid power Push-in connectors for thermoplastic tubes Transmissions pneumatique
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13、sedevrBSISO14743:2004IS:34741 O4002(E) I SO 4002 All irthgs ersedevr iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 1 4 Performance requirements 1 4.1 Material. 1 4.2 Pressure and temperature 2 5 Features . 2 6 Outside diameter of tube 2 7 D
14、esign 3 8 Marking. 7 9 Performance requirements and testing 7 9.1 General. 7 9.2 Test samples . 7 9.3 Tensile test 8 9.4 Proof and burst pressure test (for polyamide tubing only) 8 9.5 Connecting force test . 9 9.6 Disconnecting force test 10 9.7 Leakage test (to be performed before disconnecting) 1
15、0 9.8 Cyclic endurance (impulse) test with vibration (for polyamide tubing only) 13 10 Designation 15 11 Identification statement (reference to this International Standard). 16 Annex A (normative) Polyamide tubes for testing 18 Annex B (normative) Polyurethane tubes for testing . 20 Bibliography . 2
16、2 BSISO14743:2004IS:34741 O4002(E) iv I SO 4002 All irthgs ersedevrForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical
17、 committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with
18、 the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft Intern
19、ational Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may
20、be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 14743 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 4, Connectors and similar products and components. BSISO14743:2004IS:34741 O4002(E) I SO 40
21、02 All irthgs ersedevr vIntroduction In pneumatic fluid power systems, power is transmitted and controlled through air under pressure within a circuit. Components are connected through their ports by means of connectors (fittings) and conductors. BSISO14743:2004blank 4002:34741OSISBINTENRATIONAL TSA
22、NDADR IS:34741 O4002(E)I SO 4002 All irthgs ersedevr 1Pneumatic fluid power Push-in connectors for thermoplastic tubes 1 Scope This International Standard specifies the general requirements and test methods for the design and performance of push-in connectors for use with thermoplastic tubes with ou
23、tside diameters of 3 mm to 12 mm, inclusive. This International Standard is intended to establish uniform methods of testing complete push-in connector assemblies as used in pneumatic fluid power applications. It is not applicable to air braking systems. NOTE In road vehicles, it is necessary to exe
24、rcise special care to ensure that these connectors are never used in an air braking system. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest editi
25、on of the referenced document (including any amendments) applies. ISO 1746 1) , Rubber or plastics hoses and tubing Bending tests ISO 4759-1:2000, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C ISO 5598, Fluid power systems and components Vocabulary ISO 8573
26、-1, Compressed air Part 1: Contaminants and purity classes ISO 16030, Pneumatic fluid power Connections Ports and stud ends 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5598 apply. 4 Performance requirements 4.1 Material 4.1.1 Connectors shall be
27、made from materials that will fulfil the performance requirements. 4.1.2 In order to ensure proper grip, the locking mechanism, tube end of reducers and plugs shall be made from suitable thermoplastics. 1) To be published. (Revision of ISO 1746:1998) BSISO14743:2004IS:34741 O4002(E) 2 I SO 4002 All
28、irthgs ersedevr4.2 Pressure and temperature 4.2.1 Push-in connectors shall provide connections from 0,09 MPa 0,9 bar 2) to a working pressure of 1,6 MPa (16 bar) when used at temperatures between 20 C and + 80 C. 4.2.2 The connector assembly shall meet the performance requirements given in Clause 9.
29、 4.2.3 The connectors shall be capable of meeting or exceeding the combination of the highest pressure and temperature of the tubes specified in Annex A. When tubing with a lower rated pressure is used, the maximum working pressure of the tube and connector assembly shall be that of the tubing. 5 Fe
30、atures Design is at the choice of the manufacturer. Two examples are shown in Figure 1. a) With sealing system located beyond the locking mechanism b) With sealing system located in front of the locking mechanism Key 1 body 5 releasing sleeve 2 tube stop 6 removable button (optional) 3 grab ring of
31、tube 7 tube 4 sealing of tube 8 entry of the tube Figure 1 Examples of design and description of the features of push-in connectors for use with thermoplastic tubes 6 Outside diameter of tube The outside diameter of the tube shall be chosen from the following range of sizes: 3 mm, 4 mm, 6 mm, 8 mm,
32、10 mm and 12 mm. 2) 1 bar = 0,1 MPa = 10 5Pa; 1 MPa = 1 N/mm 2BSISO14743:2004IS:34741 O4002(E) I SO 4002 All irthgs ersedevr 37 Design 7.1 Push-in connector dimensions shown in Figures 2 to 7 shall conform to the dimensions given in Tables 1 to 4. 7.2 Hexagon tolerances across flats shall be in acco
33、rdance with ISO 4759-1:2000, Grade C. The minimum hexagon across-corner turn diameter of 1,092 times the normal across flats dimension shall be used. 7.3 Details of contour shall be at the option of the manufacturer, as long as the dimensions given in the tables are maintained. Figure 2 Tube inserti
34、on depth Table 1 Maximum tube insertion depth Dimensions in millimetres Tube OD D Insertion depth L max. 3 16 4 18 6 19 8 20 10 24 12 25 BSISO14743:2004IS:34741 O4002(E) 4 I SO 4002 All irthgs ersedevrFigure 3 Stud adaptor (SDS) Table 2 Dimensions for stud adaptors (SDS) Dimensions in millimetres Tu
35、be OD D d 1 aL 1s bFlow diameter d fmax. max. min. M3 10 8 1,2 3 M5 17 10 1,8 M5 22 12 2 4 M7 22 12 2,5 M7 23 14 4 6 G 1/8 23 14 4 G 1/8 24 17 5,5 8 G 1/4 24 19 6 G 1/4 27 19 7,5 10 G 3/8 27 22 8 G 3/8 30 22 10 12 G 1/2 30 26 10 aThread and stud end in accordance with ISO 16030. bHexagon socket or o
36、utside diameter at the choice of the manufacturer. BSISO14743:2004ISO 14743:2004(E) I SO 4002 All irthgs ersedevr 5Figure 4 Swivel male run tee (SWRT) Figure 5 Swivel male branch tee (SWBT) Figure 6 Swivel male elbow (SWE) BSISO14743:2004IS:34741 O4002(E) 6 I SO 4002 All irthgs ersedevrTable 3 Dimen
37、sions for swivel male run tees (SWRT), swivel male branch tees (SWBT) and swivel male elbows (SWE) Dimensions in millimetres Tube OD D d 1ad 2L 2L 3s bFlow diameter d fmax. max. max. max. min. M3 10 19 16 6 1,2 3 M5 10 19 18 10 1,8 M5 13 21 21 10 2 4 M7 13 21 21 12 2,5 M7 15 23 26 14 4 6 G 1/8 15 23
38、 26 14 4 G 1/8 17 26 28 14 5,5 8 G 1/4 17 26 28 19 6 G 1/4 22 29 32 19 7,5 10 G 3/8 22 29 32 22 8 G 3/8 24 32 37 22 10 12 G 1/2 24 32 37 26 10 aThread and stud end in accordance with ISO 16030. bHexagon socket or outside diameter at the choice of the manufacturer. Figure 7 Male banjo elbow (BJE) con
39、nectors BSISO14743:2004IS:34741 O4002(E) I SO 4002 All irthgs ersedevr 7Table 4 Dimensions for male banjo elbow (BJE) connectors Dimensions in millimetres Tube OD D d 1 aL 4L 5L 6L 7s Flow diameter d fmax. max. max. max. max. min. M3 20 10 22 5 6 1,2 3 M5 20 10 25 8 10 1,8 M5 24 10 25 8 10 2 4 M7 24
40、 12 26 9 12 2,5 M7 24 12 26 9 14 4 6 G 1/8 24 12 26 9 14 4 G 1/8 26 14 29 11 14 5,5 8 G 1/4 32 14 32 11 19 6 G 1/4 39 14 34 13 22 7,5 10 G 3/8 39 16 39 13 22 8 G 3/8 44 16 39 15 22 10 12 G 1/2 44 16 42 17 26 10 aThread and stud end in accordance with ISO 16030. 8 Marking Each push-in connector shall
41、 be permanently marked with the manufacturers/suppliers name or trademark and with the outside diameter of the tube with which it is to be used. 9 Performance requirements and testing 9.1 General 9.1.1 This clause establishes minimum qualification requirements for tensile load, pressure capabilities
42、, leakage, connection forces, disconnection forces and cyclic endurance (impulse) for pneumatic push-in connectors for use with thermoplastic tubes. 9.1.2 Unless otherwise specified, tests shall be conducted at room temperature (23 C 5 C) and a relative humidity level of 65 % 5 %. 9.1.3 Unless other
43、wise specified, a tolerance of 5 % applies to all test characteristics. 9.2 Test samples 9.2.1 Three test samples shall be subjected to the proof and burst pressure tests; six test samples shall be subjected to all other tests. 9.2.2 Prior to testing, polyamide tubing shall be conditioned at a relat
44、ive humidity level of 65 % 5 % and at an ambient temperature of 23 C 5 C for a minimum of 14 days (336 h). BSISO14743:2004IS:34741 O4002(E) 8 I SO 4002 All irthgs ersedevr9.2.3 Test samples shall consist of a push-in connector connected to the test tubing defined in Annexes A and B. Except for the t
45、ests specified in 9.6 and 9.7, the tubes for the test samples shall be cut to provide a length that is 20 times the outside diameter of the tube between the two ends of the connectors when connected. The tubes shall be connected in accordance with the connector manufacturers specification. 9.2.4 Pri
46、or to testing, each connector to be tested shall be connected and disconnected four times and then connected a fifth time so that testing can be conducted. 9.3 Tensile test 9.3.1 Procedure 9.3.1.1 The test shall be conducted under unpressurized conditions. 9.3.1.2 The test sample shall be placed in
47、a tensile machine and fixture so that the samples and end fixtures are co-linear. One end of the test sample shall be stationary, and the opposite end shall be attached to the moving member of the test apparatus. A tensile load shall be applied at a rate of 1 mm/s along the axis of the test specimen
48、. 9.3.2 Pass/fail criteria The test sample shall withstand the minimum tensile load shown in Table 5 without separation from the connector. Table 5 Minimum tensile load for tensile test Tube OD, D, mm 3 4 6 8 10 12 Minimum tensile load for polyamide (PA) tube, N 60 70 120 170 250 300 Minimum tensile
49、 load for polyurethane (PU) tube, N 25 50 100 150 200 200 9.4 Proof and burst pressure test (for polyamide tubing only) 9.4.1 Description The proof and burst pressure test is conducted with polyamide tubing, as specified in Annex A, and is intended to evaluate the ability of the connector to retain the tubing at a proof pressure of 1,5 times the rated pressure and at a min
